U.S. patent number 3,871,352 [Application Number 05/439,028] was granted by the patent office on 1975-03-18 for arrow rest accessory for archery bow.
Invention is credited to Daniel F. McKinney, Melvern B. Stanislawski.
United States Patent |
3,871,352 |
Stanislawski , et
al. |
March 18, 1975 |
ARROW REST ACCESSORY FOR ARCHERY BOW
Abstract
An arrow rest accessory for mounting on an archery bow and
aiding in the accurate and precise guiding of arrows shot
therefrom, in the form of a laterally-projecting helical spring
member, against which the side and bottom portions of the arrow
shaft rest, for absorbing the shock imparted to the bow following
arrow release. The spring member is affixed to the free end of a
flexible arm of spring steel whose other end is secured to the
handle riser portion of the bow by an adjustable mounting which
permits independent adjustment of both the vertical and lateral
positioning of the rest relative to the bow.
Inventors: |
Stanislawski; Melvern B.
(Portland, OR), McKinney; Daniel F. (Medford, OR) |
Family
ID: |
23742984 |
Appl.
No.: |
05/439,028 |
Filed: |
February 4, 1974 |
Current U.S.
Class: |
124/41.1;
124/24.1 |
Current CPC
Class: |
F41B
5/143 (20130101) |
Current International
Class: |
F41B
5/00 (20060101); F41B 5/22 (20060101); F41b
005/00 () |
Field of
Search: |
;124/41,24R,3R |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Browne; William R.
Attorney, Agent or Firm: Chernoff & Vilhauer
Claims
What is claimed is:
1. An arrow rest accessory, adapted for mounting on a handle riser
portion of an archery bow for absorbing the shock imparted to a bow
following release of an arrow, comprising:
a. mounting means adapted to releasably secure said accessory to a
handle riser portion of a bow;
b. a cantilevered resilient arm member secured at its fixed end to
said mounting means; and
c. a helically wound resilient spring member affixed at one end to
the free end of said cantilevered arm member and projecting
substantially horizontally from a handle riser portion of a bow and
in a direction transverse to that of an in-place arrow, the end of
said spring member being substantially straight and providing
vertical support of an arrow and the coiled portion of the spring
member provides a lateral support for an arrow.
2. The arrow rest of claim 1 wherein said mounting means comprises
two elements, one of which is fixedly securable to a handle riser
portion and the other of which is slidably moveable therewith for
providing lateral adjustment of said arrow rest relative to a
bow.
3. The arrow rest of claim 1 wherein the fixed end of said
cantilevered arm is pivotably connected to said mounting means for
providing vertical adjustment of said arrow rest relative to a bow.
Description
BACKGROUND OF THE INVENTION
This invention relates to an arrow rest for an archery bow for
absorbing the shock occasioned by the sudden release of the arrow
and thereby improving accuracy in flight and closer grouping of
arrows shot in target competition.
In archery contests, as well as in bow hunting where accurate
marksmanship is important, precise control of the various
parameters affecting the accuracy of arrow flight is crucial.
Accordingly, various mechanical aids have been developed for use by
archery marksmen, including optical bowsights, stabilizers for
absorbing the shock of arrow release, rope releases, etc., all with
the objective of improving accuracy. To the same end various arrow
rest bow attachments have been developed in the past, as an
alternative to the use of the shelf formed integrally in the bow,
to reduce the shock and vibration imparted to the bow, and thus to
the arrow, upon the latter's release.
SUMMARY OF THE PRESENT INVENTION
The present invention is directed to an improved form of arrow rest
accessory, adapted to be used with a wide multiplicity of bow
designs and sizes, which materially lessen shock and impact on the
bow and thus on the arrow following its release. The arrow rest of
the present invention is in the form of an accessory adapted to be
mounted on the handle riser portion of the bow and provides an
energy-absorbing lateral and vertical support for the forward
portion of the arrow shaft. The arrow rest has independent
adjustment means for permitting its ready vertical and lateral
positioning relative to the bow, as desired. Improved accuracy,
resulting from the absorption and consequent minimization of the
shock impact to the bow following arrow release, is achieved.
It is accordingly a principal objective of the present invention to
provide a new and improved arrow rest accessory for an archery bow
which minimizes the shock imparted to the bow following arrow
release.
It is a principal feature of the present invention to provide an
arrow rest accessory for mounting on an archery bow which is
provided with means for independent adjustment of the vertical and
lateral positioning of the arrow support rest relative to the
bow.
The foregoing objectives, features and advantages of the present
invention will be more readily understood upon consideration of the
following detailed description of the invention, taken in
conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a pictorial view showing an embodiment of the arrow rest
of the present invention installed on an archery bow.
FIG. 2 is an enlarged side view showing details of the arrow rest
of the present invention.
FIG. 3 is a top view of the arrow rest.
FIG. 4 is an exploded view of the arrow rest.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 shows an archery bow 10 of conventional design on which is
mounted the improved arrow rest 20 of the present invention against
which the shaft of arrow 15 rests prior to and during release of
the bow string. As shown in the detailed views of FIGS. 2-4, the
arrow rest 20 is comprised of a cantilevered arm member 25 of thin
flexible resilient metal, such as spring steel, which is disposed
between the arrow shaft and riser portion of the bow and aligned
substantially colinear with the arrow shaft. The fixed end of the
arm member 25 is secured to a mounting means 27, 28, details of
which will be described later, using a pivot set screw 30 which,
when loosened, permits angular adjustment of the arm relative to
the mount. The free end of the cantilevered arm member 25 is
provided with a laterally-projecting helical spring 29 of two or
three coil turns secured thereto at 35, either by spot welding or
soldering, and terminating in a free coil end 29a. The coil end 29a
is formed by straightening a portion of the arcuate coil end of the
spring and is arranged to align substantially horizontally. The
finger-like coil end 29a is directed toward the forward end of the
arrow shaft 15 and serves as a bottom support for the shaft, with
the coiled turns of the spring 29 serving as a lateral abutment for
the shaft.
Turning now to the mounting for the arm member 25, as previously
described set screw 30 provides a lockable pivot pin connection of
the arm to the mounting means formed by the pair of elements 27,
28. The right-angle flange 28 is secured to an appropriate location
on the handle riser portion of the bow 10 using a suitable fastener
means, such as screw 32. The leg portion of the flange 28 which
extends across the inner face of the bow is provided with a
horizontal keyway groove which mates with a corresponding dovetail
formed in slidebar element 27, the keyway combination providing a
laterally slideable mounting for the lever arm 25. Thus the lateral
position of the rest relative to the bow and transversely to the
arrow shaft is adjustable and lockable by securement of the set
screw 31 which, when tightened, fixes the position of bar 27 along
the keyway groove of flange 28. (As an alternative to element 28 of
the combination forming the mounting means for the arrow rest, an
appropriate keyway groove could be formed integrally in the inner
face of the riser portion of the bow 10 so as to provide the
channel within which the slidebar 27 can be laterally positioned
and secured.)
By reason of the two degrees of adjustment, as indicated by the
arrowheads in FIGS. 2 and 3, provided by (1) the pivot screw 30
angularly positioning the end of the lever arm 25 against the
washer 33 and slidebar 27, and (2) the set screw 31 securing the
lateral position of the slidebar 27 relative to the flange 28
affixed to the bow's handle riser, the position of the operative
support portion of the arrow rest can be readily and independently
positioned both vertically and laterally relative to the bow.
In use, the release of the bow string and the consequent sudden
forward acceleration of the arrow would ordinarily produce a severe
shock to the handle riser portion of the bow against which the
arrow shaft rests. This sudden impact would, in the usual case,
induce a momentary vibration of the bow, which movement, even
though minute, when retransmitted to the arrow would likely cause
deviation in its intended flight path. However, with the use of the
rest of the present invention, the shock impact generated by the
arrow upon its release is largely absorbed in the spring portion 29
and the cantilevered arm member 25, both of which compress under
impact but, because of their resilient nature, act as mechanical
energy absorbers and do not transmit any substantial shock or
vibration to the bow to which they are coupled. Accordingly, the
absorption of this impact by the rest 20 allows the archer to
maintain the bow rock steady following release of the arrow, thus
eliminating any deviation in the arrow's flight which might
otherwise be caused by slight movement or oscillation of the bow in
response to the shock of arrow release.
The terms and expressions which have been employed in the foregoing
abstract and specification are used therein as terms of description
and not of limitation, and there is no intention, in the use of
such terms and expressions, of excluding equivalents of the
features shown and described or portions thereof, it being
recognized that the scope of the invention is defined and limited
only by the claims which follow.
* * * * *